It's thick, it's breathable, it's stretchy, it's perfect.
Sizing?  It's super stretchy so you can deffo go a size down from your usual if you want it to be extra snatched. 
XS : 4-8 | S : 6-12 | M : 10-14 | L : 12-18 | XL : 14 - 20 
NOTE: MODELS WEARING SIZE M
NOTE: CHINESE NEW YEAR IS APPROACHING, SHIPPING WILL BE AFTER CHINESE NEW YEAR DUE TO HOLIDAYS.